1 /*
   2  * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 /*
  24  *
  25  */
  26 package com.foobar;
  27 import java.util.*;
  28 
  29 public class Utils {
  30     public static boolean supportsLocale(Locale supported, Locale requested) {
  31         if (supported.getLanguage() == "") {
  32             return true;
  33         } else if (supported.getLanguage() != requested.getLanguage()) {
  34             return false;
  35         }
  36 
  37         if (supported.getCountry() == "") {
  38             return true;
  39         } else if (supported.getCountry() != requested.getCountry()) {
  40             return false;
  41         }
  42 
  43         String supVar = supported.getVariant();
  44         String reqVar = requested.getVariant();
  45 
  46         if (supVar == "") {
  47             return true;
  48         } else {
  49             int underIndex;
  50             while ((underIndex = reqVar.lastIndexOf('_')) != (-1)) {
  51                 reqVar = reqVar.substring(0, underIndex);
  52                 if (supVar.equals(reqVar)) {
  53                     return true;
  54                 }
  55             }
  56             return supVar.equals(reqVar);
  57         }
  58     }
  59 
  60     public static boolean supportsLocale(List<Locale> supported, Locale requested) {
  61         for (Locale l : supported) {
  62             if (supportsLocale(l, requested)) {
  63                 return true;
  64             }
  65         }
  66         return false;
  67     }
  68 }